[ 10.255735][ T186] ip (186) used greatest stack depth: 23840 bytes left [ 10.255751][ T186] BUG: sleeping function called from invalid context at ./include/linux/sched/mm.h:322 [ 10.255753][ T186] in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 186, name: ip [ 10.255755][ T186] preempt_count: 2, expected: 0 [ 10.255756][ T186] RCU nest depth: 0, expected: 0 [ 10.255757][ T186] locks held by ip/186: 5, last CPU#3: [ 10.255759][ T186] #0: ffffffffbd0027b8 (low_water_lock){+.+.}-{3:3}, at: do_exit+0x887/0xdc0 [ 10.255772][ T186] #1: ffffffffbd169cc0 (console_lock){+.+.}-{0:0}, at: vprintk_emit+0x320/0x3e0 [ 10.255777][ T186] #2: ffffffffbd169d38 (console_srcu){....}-{0:0}, at: console_flush_one_record+0x106/0x710 [ 10.255781][ T186] #3: ffffffffbd089660 (console_owner){....}-{0:0}, at: console_lock_spinning_enable+0x40/0x60 [ 10.255785][ T186] #4: ffffffffbd089560 (printk_legacy_map-wait-type-override){....}-{3:3}, at: console_emit_next_record+0x1df/0x4c0 [ 10.255789][ T186] irq event stamp: 48568 [ 10.255789][ T186] hardirqs last enabled at (48567): [] __down_trylock_console_sem+0x86/0xa0 [ 10.255792][ T186] hardirqs last disabled at (48568): [] console_emit_next_record+0x3d4/0x4c0 [ 10.255794][ T186] softirqs last enabled at (48484): [] handle_softirqs+0x67c/0x900 [ 10.255797][ T186] softirqs last disabled at (47855): [] __irq_exit_rcu+0x145/0x1c0 [ 10.255800][ T186] Preemption disabled at: [ 10.255801][ T186] [<0000000000000000>] 0x0 [ 10.255809][ T186] CPU: 3 UID: 0 PID: 186 Comm: ip Tainted: G W 7.2.0-virtme #1 PREEMPT(full) [ 10.255813][ T186] Tainted: [W]=WARN [ 10.255814][ T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 [ 10.255816][ T186] Call Trace: [ 10.255818][ T186] [ 10.255819][ T186] dump_stack_lvl+0x6f/0xa0 [ 10.255826][ T186] __might_resched.cold+0x1fe/0x2c1 [ 10.255830][ T186] ? perf_trace_sched_switch+0x7c0/0x7c0 [ 10.255834][ T186] ? __kmalloc_noprof+0xdb/0x760 [ 10.255839][ T186] __kmalloc_noprof+0x443/0x760 [ 10.255842][ T186] ? alloc_buf.isra.0+0x4b/0x260 [ 10.255848][ T186] ? do_raw_spin_unlock+0x59/0x250 [ 10.255850][ T186] alloc_buf.isra.0+0x4b/0x260 [ 10.255854][ T186] put_chars+0x1e1/0x2f0 [ 10.255856][ T186] ? __send_to_port+0x420/0x420 [ 10.255858][ T186] ? rcu_lockdep_current_cpu_online+0x3f/0x1b0 [ 10.255863][ T186] ? validate_chain+0x38b/0xc20 [ 10.255868][ T186] hvc_console_print+0x292/0x780 [ 10.255874][ T186] ? hvc_write+0x3a0/0x3a0 [ 10.255876][ T186] ? rcu_is_watching+0x16/0xd0 [ 10.255878][ T186] ? lock_acquire+0x13c/0x160 [ 10.255882][ T186] console_emit_next_record+0x22f/0x4c0 [ 10.255886][ T186] ? devkmsg_read+0x4b0/0x4b0 [ 10.255888][ T186] ? console_flush_one_record+0x106/0x710 [ 10.255891][ T186] ? rcu_is_watching+0x16/0xd0 [ 10.255893][ T186] ? lock_acquire+0x13c/0x160 [ 10.255897][ T186] console_flush_one_record+0x46f/0x710 [ 10.255901][ T186] ? console_emit_next_record+0x4c0/0x4c0 [ 10.255903][ T186] ? __lock_acquire+0x518/0xc20 [ 10.255909][ T186] console_unlock+0xee/0x1f0 [ 10.255911][ T186] ? console_flush_one_record+0x710/0x710 [ 10.255913][ T186] ? rcu_is_watching+0x16/0xd0 [ 10.255915][ T186] ? lock_acquire+0x60/0x160 [ 10.255919][ T186] ? __down_trylock_console_sem+0x5e/0xa0 [ 10.255921][ T186] ? vprintk_emit+0x320/0x3e0 [ 10.255924][ T186] vprintk_emit+0x37c/0x3e0 [ 10.255928][ T186] ? wake_up_klogd_work_func+0x90/0x90 [ 10.255931][ T186] ? __lock_acquire+0x518/0xc20 [ 10.255935][ T186] _printk+0xc7/0x100 [ 10.255938][ T186] ? snapshot_read.cold+0x21/0x21 [ 10.255941][ T186] ? do_raw_spin_lock+0x131/0x280 [ 10.255944][ T186] ? __rwlock_init+0x150/0x150 [ 10.255948][ T186] ? do_raw_spin_lock+0x131/0x280 [ 10.255950][ T186] do_exit.cold+0x82/0x9c [ 10.255954][ T186] ? exit_notify+0x890/0x890 [ 10.255956][ T186] ? __lock_release.isra.0+0x69/0x1a0 [ 10.255959][ T186] ? rcu_is_watching+0x16/0xd0 [ 10.255963][ T186] do_group_exit+0xb8/0x370 [ 10.255965][ T186] __x64_sys_exit_group+0x3c/0x50 [ 10.255967][ T186] x64_sys_call+0x1567/0x1570 [ 10.255969][ T186] do_syscall_64+0xff/0x530 [ 10.255972][ T186] ? exc_page_fault+0xee/0x100 [ 10.255976][ T186] entry_SYSCALL_64_after_hwframe+0x4b/0x53 [ 10.255978][ T186] RIP: 0033:0x7f8c83b1b1b8 [ 10.255980][ T186] Code: Unable to access opcode bytes at 0x7f8c83b1b18e. [ 10.255981][ T186] RSP: 002b:00007ffcf1164848 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 [ 10.255984][ T186] RAX: ffffffffffffffda RBX: 00007f8c83c4bf88 RCX: 00007f8c83b1b1b8 [ 10.255985][ T186] RDX: 00007f8c83865fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000 [ 10.255986][ T186] RBP: 00007ffcf11648a0 R08: 0000000000000000 R09: 0000000000008010 [ 10.255987][ T186] R10: 00007ffcf1164660 R11: 0000000000000246 R12: 0000000000000001 [ 10.255988][ T186] R13: 0000000000000000 R14: 00007f8c83c4a680 R15: 00007f8c83c4bfa0 [ 10.255994][ T186]